EP 0344380 A2 19891206 - Elastomeric composition having increased ozone resistance.
Title (en)
Elastomeric composition having increased ozone resistance.
Title (de)
Elastomere Zusammensetzung mit erhöhter Ozonbeständigkeit.
Title (fr)
Composition élastomère ayant une résistance modifiée à l'ozone.
Publication
Application
Priority
US 20113188 A 19880601
Abstract (en)
An elastomeric composition formed by curing a blend comprised of (A) between about 83 and about 94 phr of a highly unsaturated rubber; (B) between about 3 and about 27 phr of ethylene/propylene/nonconjugated diene terpolymer having a number average molecular weight of more than about 35,000; (C) between about 3 and about 27 phr of ethylene/propylene/nonconjugated diene terpolymer having a number average molecular weight of between about 500 and about 15,000; between about 2 and about 7.5 phr of a quinoline antioxidant; and (D) an effective amount of curative exhibit unexpectedly desirable ozone resistance. Also disclosed is a process for preparing such elastomeric compositions.
IPC 1-7
IPC 8 full level
C08K 5/34 (2006.01); C08K 5/3437 (2006.01); C08L 21/00 (2006.01); C08L 23/16 (2006.01); C08L 83/04 (2006.01)
CPC (source: EP KR US)
C08K 5/3437 (2013.01 - EP US); C08L 21/00 (2013.01 - EP US); C08L 23/16 (2013.01 - EP KR US); C08L 83/04 (2013.01 - EP US); C08L 2205/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU SE
DOCDB simple family (publication)
EP 0344380 A2 19891206; EP 0344380 A3 19910918; EP 0344380 B1 19950222; AT E118801 T1 19950315; AU 2393788 A 19891207; AU 610265 B2 19910516; BR 8805805 A 19900619; CA 1330843 C 19940719; CN 1038109 A 19891220; DE 3853157 D1 19950330; DE 3853157 T2 19950720; JP H01319551 A 19891225; JP H075798 B2 19950125; KR 900000417 A 19900130; KR 960016618 B1 19961216; US 4843128 A 19890627
DOCDB simple family (application)
EP 88309731 A 19881017; AT 88309731 T 19881017; AU 2393788 A 19881017; BR 8805805 A 19881108; CA 580166 A 19881014; CN 88108003 A 19881125; DE 3853157 T 19881017; JP 27594488 A 19881031; KR 880013686 A 19881020; US 20113188 A 19880601